Improvement in bracelets



r"'IQT1\T1TIED.Strrrrns PATENT! OFFICE.

JOHN N. THOMSON, OF PROVIDENCE, RHODE ISLAND.`

IMPROVEMENT IN BRAcl-:LE-rs.

Specificationforming part of Letters Patent No. 168,855, dated October 19, 1875; application iiled November 9, 1874.

To all whom it may concern Be it known that I, JOHN N. THOMSON, of

Providence, in` the county of Providence and State of Rhode Island, have invented certain new and useful Improvement-s in Bracelets; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in bracelets; and the invention consists in making a bracelet in olie piece from a continuous strip or band of metal, in such manner that, when bent into form, the ends shall overlap, one end forming a guide or socket for the other, in which it is made to slide back and forth, so as to render the bracelet adjustable to suit wrists of different sizes, and be conveniently placed upon and made to it the arm of the 'L wearer. It also consists in the peculiar construction ot' the clasp or fastening device, in the stops for preventing one end from sliding too far on the other, and for preventing the ends coming apart; and, further, it consists in making the strip of metal of which the bracelet is formed convex in form, thereby preventing cutting or injuring the skin of the wearer by coming. in contact with the edges, and making it stronger and more easy to be 4 taken hold of for adjustment, all as hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a perspective view of my improved bracelet. Fig. 2 is a plan view of same. Fig. 3 is a transverse section taken on the line .fr .r of Fig. 1. Fig. 4 is a transverse section, showing the convex form of the bracelet. v

Referring to the parts by letters, A represents the bracelet,made from a single piece of stock or band of metal bent into proper shape, and also made concave O11 its outer and convex on its inner face, as clearly shown in the drawings. The end of this band A1 is cut so as toform shoulders a at a suitable distance from its extremity, for the purpose hereinafter stated, and its extremity has three indentations, b b b. The center one, b, is indented from the `outer side of the band, forming a projection or elongated bead on the inncr side; and the two outer ones, b", are indented from the inner side, so as to form beads or projections on the outer side. The extremity of the end A1 is also cut or notched on each side ofthe indentation b with notches c c, and that portion of the metal between the notches c c slightly bent inward, so as to make it spring, as hereinafter set forth. These indentations or beads b b are most conveniently formed by swaging up or stamping the metal; but they may be formed in any other suitable manner. The end of the band A2 has its edges d turned or rolled over, so as to form guides or a channel, in which the end A1 is made to slide back and forth. d d are inwardly-projecting prongs or stops on the guides d, near the extremity of the end A2, which come in contactwith the beads or projections b when the bracelet is opened to its full length, and thereby prevent the two ends coming apart and the bracelet dropping off from the wrist ofthe wearer. c represents a series of indentations, arranged in pairs on .the ends A2, at proper distances apart, and in the'sameline with the indentation or inwardly-projecting bead b. These indentations c are indented from the inner side, and form beads or projections on the outer side of the end A2.

Holes punched through the metal may be used 'in place of these beads e; but I prefer to use the beads or projections..

The operation of the device (not before described) is as follows: When the bracelet is drawn out to its full extent the hand of the wearer is passed through it, when all that is .necessary to iit it to the arm is to press on the sides, when the end Al will slide inwardly in the guides d until the bead b passes between and engages with one o r other of the pairs of beads or projections e, and thereby clasps the bracelet, the spring of the metal between the notches c c being of sufficient strength to keep the bead b between the beads or projections e, and to retain the bracelet in proper position on the arm ofthe wearer. The .shoulders a, coming in contact with the extremities of the guides d, act as stops, and prevent one end sliding too far on the other, and, as before stated, the projections d d', coming in contact with the beads b', prevent the two ends coming apart. i

The convex form ofthe inner surface of the bracelet prevents the sharp edges from coming in contact with the skin of thev wearer, the turned-up edges being easily taken hold of to pull the ends apart, when desired, for adjustment of the bracelet, or for its removal.

Havingthus described my invention, what I 4claim as new, and desire to secure by Letters Patent, is-

1. -A bracelet provided with fastening device, and all made from a single piece or strip of metal, substantially as and for the purpose set forth.

2. The bracelet A, having the ends A2 -formed with guides d and projections or beads e,`and the end A1, having an indentation or bead, b, and notches c, substantially as and for the purpose set forth.

3. The bracelet A, having shoulders or stops JOHN N. THOMSON.

Witnesses:

S. A. BARBER, JOHN A. DEVEREUX. 

